From three aspects of strengthening innovative consciousness of archive work, opening innovative ways for archives work and increasing innovative ability of file clerks themselves, this paper discusses on the problem of how the file clerks of collages and universities to do well archives work.

Technological ways of improving potassium content in flue-cured tobacco leaf;

Basis on the control technology situation of vegetation recover in Horqin sandy land,we put forward the guiding ideology and the goal of ecological construction,and further discussed the technological ways of vegetation recover in Horqin sandy land.